Follicle maturation is usually seen about a week after taking Letrozole, but the exact time varies from person to person.
Letrozole is a highly selective aromatase inhibitor that works by lowering estrogen levels and is primarily used to treat breast cancer. However, it also has the effect of promoting ovulation. This effect is over-indicated and is usually started on the 5th day of menstruation at a dose of 2.5-5mg per day for 5 days.
The formation of dominant follicles can usually be seen about a week after taking Letrozole, but there is no fixed time for follicle maturation depending on each individual’s physical condition and hormone levels, and some may not even have dominant follicles.